Flora of North America species comparison

solitary, erect, straight;

branches distal or along entire stem, distal or proximal longest, antrorse, upcurved; hairy.

blade 43.6–233 × 9.2–34.7 mm, always some longer than 146 mm, widest intersinus distance 5.2–17 mm;

proximal oblanceolate to elliptic, margins serrate to pinnate, teeth or lobes 10–38, slightly antrorse, 1.5–9.4 mm;

distal lanceolate, base not clasping, margins serrate to pinnate, teeth or lobes 8–24, slightly antrorse, 2.9–10.3 mm;

abaxial surface with simple grappling-hook, complex grappling-hook, and needlelike trichomes, adaxial surface with simple grappling-hook and needlelike trichomes.

not persisting.

petiole present (proximal leaves), absent (distal leaves);

blade lanceolate to linear (proximal leaves), ovate to lanceolate (distal leaves), to 6 cm, margins dentate or entire (proximal leaves), entire (distal leaves).

green, ovate to elliptic, 5–8.5 × 2–5 mm, width 2/5–3/5 length, not concealing capsule, margins entire.

margins entire.

sepals 3–5.5 mm;

petals yellow to orange proximally, yellow distally, 8–12 mm, apex rounded;

stamens 20+, 3–8 mm, filaments monomorphic, filiform, unlobed;

styles 7–9 mm.

petals golden yellow, 14.4–28.6 × 3.8–8 mm, apex acute to rounded, glabrous abaxially;

stamens golden yellow, 5 outermost petaloid, filaments narrowly spatulate, slightly clawed, 13–21.3 × 2.9–6.8 mm, without anthers, second whorl with anthers;

anthers straight after dehiscence, epidermis smooth;

styles 8.9–15.2 mm.

cylindric or clavate, 5–22 × 2–4 mm, axillary curved to 45° at maturity, often prominently longitudinally ribbed.

cylindric, 13.1–31.1 × 5.7–9.4 mm, base tapering to rounded, not longitudinally ridged.

15–25, in 2+ rows distal to mid fruit, tan, dark-mottled, irregularly polygonal, surface smooth to minutely tessellate under 10x magnification; recurved flap over hilum absent;

seed coat cell outer periclinal wall flat to slightly convex.

coat anticlinal cell walls wavy, papillae 4–13 per cell.

= 36.

= 18, 20.